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Inventories (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Composition of Inventories

The composition of inventories was as follows:

 

 

 

December 31

 

(In thousands)

 

2018

 

 

2017

 

Finished products

 

$

141,900

 

 

$

117,529

 

Raw materials

 

 

58,265

 

 

 

55,219

 

Total inventories

 

$

200,165

 

 

$

172,748